370 Watt Walkable Semi Rigid Solar Panel with Polycarbonate & J-Mount Brackets - New Generation Back Contact Cell A+ Grade 27.4% Efficient Cells

High-capacity solar generation without giving up valuable deck or roof space.

The CMPower 370 Watt Walkable Semi-Rigid Solar Panel is designed for installations that require substantial solar output while maintaining a usable surface area. Using advanced 27.4% efficient All-Back Contact (ABC) solar cells, this panel delivers high power production in a slim, walkable format suited for marine, van, and off-grid applications.

With a larger 40.7 × 58.7 inch (1035 × 1490 mm) footprint and 370 watts of rated power, this model provides increased energy generation for larger electrical systems while maintaining a low-profile 5 mm semi-rigid construction. The included transparent twin-wall polycarbonate backing and J-channel mounting system help create a supported installation designed for demanding environments.

Key Features

• 370W maximum solar output
• 27.4% high-efficiency Back Contact solar cells
• New-generation All-Back Contact (ABC) solar technology
• Walkable semi-rigid solar panel construction
• Large-area 40.7 × 58.7 inch footprint
• Slim 5 mm panel thickness
• Improved performance under partial shading
• Excellent high-temperature operation
• -0.26%/°C Pmax temperature coefficient
• Clean all-black appearance without visible front grid lines
• Transparent twin-wall polycarbonate backing included
• J-channel mounting extrusions included
• Designed for marine, RV, van, and off-grid solar systems
  

What's Included

• PV solar panel module
• Sheet of twin wall polycarbonate backing
• Two J channel mounting extrusions
• Owner’s Manual

Specifications

High-Efficiency 27.4% All-Back Contact Cell Technology

The CMPower 370W uses advanced All-Back Contact (ABC) solar cells, a next-generation cell design that places both positive and negative electrical contacts on the rear side of the solar cell.
By moving electrical connections away from the sunlight-facing surface, more of the cell area is available for light absorption. This allows the panel to achieve 27.4% cell efficiency while maintaining a clean, uniform black appearance.

Key benefits:

• Higher energy production from available surface area
• Improved aesthetic appearance compared with traditional grid-pattern solar cells
• Efficient power generation for larger marine and mobile systems

Large-Format Walkable Semi-Rigid Construction

The 370W model is built for customers who need more solar power but still want to preserve usable deck, roof, or vehicle space. Its semi-rigid structure combines a slim 5 mm panel profile with a transparent twin-wall polycarbonate backing system. This backing provides additional support beneath the panel while helping create separation between the solar surface and installation area.
The included J-channel brackets allow the panel assembly to be mounted securely while maintaining a clean, low-profile appearance.

Construction highlights:

• Walkable semi-rigid design
• Twin-wall polycarbonate support layer
• Included J-channel mounting system
• Maximum bend specification: 10°
• Durable construction for demanding solar installations

Higher Solar Output for Larger Systems

With 370 watts of rated power, this panel is designed for installations requiring greater energy production from a limited mounting area. The larger format makes it suitable for applications such as:

• Marine electrical systems with higher energy demands
• Extended cruising and off-grid applications
• RV systems with multiple appliances
• Van conversions requiring additional solar capacity

The panel achieves this output while keeping a streamlined profile compared with conventional framed modules.

Enhanced Performance When Shading Occurs

Real-world solar installations rarely receive uninterrupted sunlight throughout the entire day. Marine equipment, roof accessories, antennas, vents, and other structures can create temporary shadows across a panel.

The CMPower 370W incorporates an advanced cell and electrical design intended to improve performance during partial shading conditions, helping maintain productive solar generation when sunlight availability changes.

Reliable Operation in Hot Environments

Solar panels mounted on boat decks, RV roofs, and vehicle surfaces can experience elevated temperatures during direct sun exposure. The CMPower 370W features a low Pmax temperature coefficient of -0.26%/°C, helping reduce the rate of power reduction as cell temperatures increase.

Sleek All-Black Solar Surface

The all-black finish allows the panel to blend more naturally into:

• Yacht decks
• Sailboat surfaces
• Van roofs
• Camper van builds
• Custom off-grid installations

Designed for Marine, RV & Off-Grid Applications

The CMPower 370W is suited for installations where maximizing solar production is important but available mounting area is limited.

Recommended applications:

• Yacht and sailboat decks
• Large boat solar arrays
• RV and motorhome roofs
• Camper vans
• Off-grid mobile systems
• Custom deck solar installations
• Space-limited rooftop solar setups